The purgatory control 2bliss ready is the standard bearer for all mountain tire performance by applying fe analysis to the purgatory we39ve optimized the tread to result in a faster grippier tire for any all mountain excursioncasing 60 tpi for 15 improved cut resistancebead foldablebutyl wrapped bead 2bliss readycenter compound 60a shoulder compound 50agt 650b x 23quot psi 35 65 approximate weight 730ggt 650b x 30quot max ride 20 psi max install 35 psi approxima